baber/WOPTO huggingface dataset:
Patent GB-193475-A (GB)
Title: Improvements in the manufacture of iron and steel and apparatus therefor
IPC: C21B13/10
Filed: 1921-11-22
Abstract: 193,475. Heyen, A. P. Nov. 22, 1921. Extracting.-In a process of manufacture of iron and steel of the type in which iron ore, silicates or double silicates of iron are reduced by a suitable gas such as hydrogen, carbon monoxide &c. the process is carried out in three distinct operations separately and one after the other as follows :-(a) a compound silicate is first obtained by fusing scrap steel, slags from the melting of lead or copper &c. with slags from a former operation; (b) the silicate so obtained is reduced by blowing a suitable reducing gas through the molten mass but above the level of the molten metal; (c) the metal obtained is refined with substances suitable for the production of the desired product. These operations may be carried out in three separate furnaces but usually are carried out successively in the furnace shown in Fig. 5. A cylindrical shell ABCD with a refractory lining is contained inside a shell EFGH the whole being rotated by rollers V. A band IJ secured to supports on the girders of the framing of the furnace forms bearings for the bands K, L carried by the furnace, the band IJ being connected by a small tube f to a pipe D<1> form a gas holder U by an arrangement p to allow expansion of the tube. The gas from the pipe D' passes through inclined twyers W into the furnace, inspection doors p<1> being provided in the outer shell of the furnace. Air enters through the openings T, T<1>, passes through the regenerators R, R<1> and into the furnace by the passages M, M<1>. At the same time gas from the producer passes through the openings S, S<1>, regenerators Q, Q<1> and into the furnace, by pipes N, N<1>. In carrying out the process, for the first operation the furnace is placed as shown and is heated by gas entering by the passage N, the necessary air for the combustion passing in by the passage M. When the compound silicate is formed, the furnace is turned through 180‹ and reducing gas from the pipe D<1> passes into the space between the two shells of the furnace and thence by twyers W into the molten silicate mass above the level of the molten metal. The slag passes off and the furnace is turned through 180‹ when substances, suitable for the production of the desired product, are added. The supply of reducing gas is cut off and the furnace heated in the usual way.
Patent GB-1474134-A (GB)
Title: Turbine
IPC: F01D5/12
Filed: 1974-07-16
Abstract: 1474134 Turbines RHONE-POULENCTEXTILE 16 July 1974 [17 July 1973] 31496/74 Heading FIT A high-speed turbine, e.g. rotating at up to 100,000 r.p.m. to drive a textile winding spindle, comprises a bladed rotor 8 in a turbine body 1 having at least one fluid inlet nozzle 3, e.g. for compressed air, co-operating with a tapered groove 5 in the rotor seat, the profile of each blade 9 being such that: (a) the leading portions 11, 12 of the low and high-pressure sides are both convex and define an angle of less than 20 degrees at the leading edge; (b) the tangent to the low-pressure side at the leading edge extends substantially in the direction of the fluid inlet nozzle; and (c) both sides of the blade include portions 14, 15 extending over at least 140 degrees of an arc of a circle. The blades define a funnel-shaped inlet 13 and a circular channel 16 between them. The initial convex portions on both sides of the blades are connected to the arcuate portions 14, 15 by straight portions. When two fluid inlet nozzles 3, (4), Fig. 1 (not shown) are utilized, they are arranged diametrically opposite each other, each groove 5 extending over 155 degrees, and leak proof zones (7) being defined over 25 degrees between the groove end and the next fluid inlet.
Patent GB-452896-A (GB)
Title: Improvements in and relating to cap retainers for deformable tubes and other containers
IPC: B65D35/42
Filed: 1935-11-14
Abstract: 452,896. Closuring collapsable tubes. MULHENS, P. P., 14, Glockengasse, Cologne, Germany. Nov. 14,1935, No. 31518. [Class 125 (iii)] A cap-retainer for a collapsable tube &c. 5 comprises two portions 2, 3, one of which engages the neck of the tube and the other the cap. A collar 2a of material having a lower coefficient of friction than rubber is interposed between the rubber of the retainer and the cap or the neck of the tube. The retainer may comprise a strip of rubber with an eve at each end and the collar 2a mav be a split washer. Alternatively, the retainer (Fig. 6) may be made from looped rubber 11 covered by artificial silk &c. clamped or otherwise secured together at 13 to form the desired eyes.
Patent GB-840115-A (GB)
Title: Yarn tuft cutting device
IPC: D03D39/24
Filed: 1956-10-17
Abstract: 840,115. Cutting pile yarns. CRABTREE & SON Ltd., D., and FELTON, W. Oct. 7, 1957 [Oct. 17,1956], No. 31564/56. Class 142(2). [Also in Group VII] A device for cutting pile yarns comprises a pair of relatively reciprocable blades one of which has a series of holes through which the pile ends can project, and the other comprises a plurality of flexibly mounted cutting elements each of which presses on to the first blade and co-operates with one or a group of holes, upon relative reciprocation, to shear the pile yarns. In Figs. 2,4 a fixed blade 10 is formed with a series of holes 16 each adapted to receive a pile end 27, and formed with an inclined cutting edge 17 which may be provided on a hardened member inserted into blade 10. A pile-retaining wire 15a is fixed to the undersurfaces of the sides 15 of the holes. The sides 15 may be separate members inserted into separate rear and front parts of blade 10. The movable blade comprises a plurality of cutting elements 20 presenting cutting edges 21 of serrated form, and connected by screws 22, 25 to a reciprocating bar 19, springs 24 being interposed between the heads 23 of screws 22 and the members 20 in order to mount the latter resiliently. In a modification, Fig. 6, the movable cutting elements 34 have attached to their edges remote from their cutting edges 35 an angle member 36 which enters a slot 32 formed in a reciprocating bar 29. The vertical leg of an angle member 30 is attached by screws 31 to bar 29, and the horizontal leg, which overlies the elements 34, carries grub screws 33 which abut the latter. Specification 813,439 is referred to.
Patent GB-757863-A (GB)
Title: Improvements in and relating to flushing cisterns
IPC: E03D1/10
Filed: 1954-11-03
Abstract: 757,863. Syphonic flushing cisterns. ROSELL, V. A. R. Nov. 3, 1954, No. 31804/54. Class 26. A syphon for a flushing cistern 1 in which the flushing is initiated by depressing a plunger 5 and hence a float 4 to raise the water level, comprises an outlet pipe 7a and two inlet pipes 7b each joined to the pipe 7a by an arcuate portion 7c whose cross-sectional area is smallest at the spill line 8 and continuously increases towards the adjacent inlet pipe 7b. The arcuate portions 7c are preferably oval in cross-section to aid in priming the syphon and reducing the overall height of the cistern while allowing a rapid flushing.
Patent GB-1434178-A (GB)
Title: Amplifying circuit
IPC: H03F1/52
Filed: 1974-07-18
Abstract: 1434178 Transistor amplifiers INTERNATIONAL BUSINESS MACHINES CORP 18 July 1974 [9 Aug 1973] 31867/74 Heading H3T Temperature variation in the quiescent current of a class AB amplifier is minimized by providing the bias on base 42 Fig. 4 of the output transistor 45 from a differential amplifier comprising transistors 24, 27 having characteristics matched over the working range of the amplifier. Temperature variations therefore do not affect the balance of the differential amplifier and the bias applied to base 45 is temperature insensitive. The input 20 is applied to the emitter of transistor 24 and a feedback signal from the emitter 40 is applied to the emitter of transistor 26 to determine the bias level. A bootstrap capacitor 54 which is charged while transistor 45 is off prevents complete removal of base drive current when the transistor turns on. Overload protection.-If the current thrcugh resistor 50 becomes too large, the increased voltage drop turns on transistor 37 which connects the base 42 to earth through low impedance load 52. Two amplifiers are preferably combined in push-pull as shown. In a modification, Fig. 5 (not shown) transistor 45 is replaced by a PNP transistor 70 with its collector connected to resistor 50 and capacitor 54 is omitted.
Patent GB-1192395-A (GB)
Title: Puzzle
Inventor: MAYER WALDEMAR
IPC: A63F9/12
Filed: 1967-07-11
Abstract: 1,192,395. Three-dimensioned jig-saw puzzle. W. MAYER. 11 July, 1967 {12 July, 1966], No. 31910/67. Heading A6H.  A puzzle comprises a plurality of complementary elements having mating peripheries adapted toform, when assembled., a substantially continuous display surface of regular geometric form which is at least partly constitubed in three-dimensional 'relief and conveys information indicia, each element comprising a lamination of a base portion, having a flat .resting surface and a surface ;sheet having said display surface. The puzzle may be made, by applying information onto an 'upper surface of a flat sheet capable of being permanently deformed, imparting to the sheet permanent threedimensional form which is co-ordinated with the information, imparting to an upper surface of a base, e.g. a .relief form complementary to that of the lower surface sheet, joining the lower surface of the sheet to the upper surface of the base, and cutting the sheet and base into a plurality of pieces. The base may be of a foam material suitably shaped by application of heat and' pressure.
Patent GB-1219668-A (GB)
Title: Improvements in or relating to continuous rotary casting of round bars of metal.
IPC: B22D11/14
Filed: 1968-07-04
Abstract: 1,219,668. Continuous casting machines. SOC. CIVILE D'ETUDES DE CENTRIFUGATION. 4 July, 1968 [4 July, 1967], No. 31949/68. Addition to 1,121,838. Heading B3F. A method of making steel bars comprises introducing a jet of molten metal 20 into a mould 6 rotating about its vertical axis at a point which is eccentric in relation to the axis of rotation of the mould, simultaneously imparting a vertical reciprocating movement to the mould and withdrawing the cast bar from the mould while rotating the cast bar at the same speed as the mould. The mould 6 and its rotating mechanism 4 are mounted on three jacks 15, 16 (see Fig. 4) which are preferably hydraulic and driven simultaneously with equal amplitude to reciprocate the mould. The hydraulic jacks are driven by a pump 22 comprising three separate cylinders 24, each reciprocated by cams 26. The mould and its support pivot about a vertical axis at 5 to allow access to the withdrawal rolls at 3 and cooling apparatus at 2. The amplitude of reciprocation of the mould is 5 to 30 mm. and the downward speed is between 1 and 1À15 times the speed of withdrawal of the cast bars whilst the upward speed is 1 to 3 times the cast bar withdrawal speed.
Patent GB-192844-A (GB)
Title: Improvements in and relating to glass working machines
IPC: C03B33/085
Filed: 1921-11-29
Abstract: 192,844. British Thomson-Houston Co., Ltd., (General Electric Co.). Nov. 29, 1921. Chucks.-In an apparatus for severing glass tubes, the tubes are gripped by separate chucks which comprise a member M<10>, Fig. 10, carried in a ball race and supporting pivoted arms M<17>, M<25> provided with engaging fingers M<18>, M<26> and having interengaging arms M<19>, M<22> which are lifted to open the chuck, against spring pressure, by means of a rod M<29>. The rod M<29> is provided with a roller M<30> riding on a ring-shaped arm M<31> mounted on a rod M<32> which is raised bv a camoperated lever. The chuck is rotated through a friction clutch by a gear M<14> and is stopped with the engaging arms open to permit the discharge of the cut-off part of the tube, and the admission of the next tube. by a cam-operated detent engaging a projection on the member M<10>.
Patent GB-873149-A (GB)
Title: Method of producing oriented silicon steel
IPC: C22C38/02
Filed: 1957-10-14
Abstract: Grain oriented silicon steel with 2-4% silicon and 0.01-0.04% aluminium is hot rolled, pickled, cold rolled to final gauge in a single step with a reduction of 65-85%, strand annealed for a short period at 750-950 DEG C. and finally box annealed at 1000-1200 DEG C. Prior to pickling the steel may be decarburized by box annealing at 700-1000 DEG C. with mill scale thereon, or the above mentioned strand anneal may be carried out in a decarburizing atmosphere containing over 10% hydrogen, and water vapour at the rate of 0.1-0.5 volume by volume of hydrogen.
Patent GB-321369-A (GB)
Abstract: 321,369. Brown, T., and Giraud, S. L. Feb. 1, 1929. Books, folding models, and paper and like toys. -Collapsable models, toys, &c., arranged with a book and connected thereto so that they are erected automatically when the book is opened, and are folded flat when the book is closed, are formed of sheets or parts with plane or uninterrupted surfaces connected by folding-creases which enable the parts to assume their correct relative positions upon the opening and closing of the book. Fig. 4 shows the model of a house arranged at the fold of a book, the side walls a <4>, a<5> being hingedly connected to base flaps a<14>, a<15> secured to the adjacent pages b. The end walls and roof sections are provided with folds or creases so that they fold upon themselves when the model is collapsed. In a modification, Fig. 5, models a<1>, a<2> are disposed upon adjacent pages and secured thereto by hinge-flaps b<1>, c<4> at the bottoms of their outer walls a<4>, a<7>, their respective inner walls a<5>, c<6>, being connected together by a foldable strip c. Alternatively, a model hinged upon one page may be connected directly to the adjacent page of a foldable strip which effects the erection of the model when the book is opened. An animated effect is produced by a model comprising co-operating pieces e secured at their feet e', e<2> to the adjacent pages and formed with tongues or the like e<3> to engage and guide a slidable portion e<4> which is connected to the pages bv flexible cords or strips e<7> and is actuated by its abutment against a foldable piece e<5> with base pieces e<6> secured to the pages b. Auxiliary folders containing collapsable models may be secured to the pages of the book and provided with a line of perforations to facilitate their detachment. Specification 25641/98, [Class 16, Books, &c.], is referred to.
Patent GB-1409345-A (GB)
Title: Process for preparing coloured polyurethane leather
IPC: C08K5/00
Filed: 1973-07-05
Abstract: 1409345 Coated sheet material HODOGAYA CHEMICAL CO LTD 5 July 1973 [26 July 1972] 32153/73 Heading B2E [Also in Division C3] Coloured polyurethane leather is prepared by the addition reaction of polyisocyanate with an active hydrogen containing compound and coating the resulting polyurethane on a sheet of polyurethane, polyvinyl chloride, nylon, cloth or non-woven fabric, there being incorporated before or during the addition reaction a copper phthalocyanine dye having the formula: wherein CuPc represents a chlorinated or non- chlorinated copper phthalocyanine moiety, R represents a hydrogen atom, an alkyl group or a hydroxyalkyl group, R 1  represents wherein A represents an optionally substituted alkylene group, X 1  represents a hydroxyl amino or a substituted or unsubstituted alkylamino group, B represents an optionally substituted alkylene group, D represents -SO 2  or -COX 2  represents hydrogen, an alkyl or hydroxyalkyl group and X 3  represents an amino, alkylamino or a hydroxy substituted alkyl amino group, R 2  represents hydrogen or an alkyl group, R 3  represents a substituted or unsubstituted alkyl group, x represents 1, 2 or 3, y represents 1, 2 or 3 and x + y is 2, 3 or 4. Alternative methods of preparing the polyurethane leather comprise (a) reacting the phthalocyanine dye with the polyisocyanate before reaction with the active hydrogen compound (b) mixing the dye with the polyisocyanate, a polyol and a solvent and coating the resulting solution on a substrate, (c) mixing the dye with the polyisocyanate, a polyurethane and a solvent and coating the resulting solution on a substrate or (d) mixing the dye with a polyurethane and a solvent, coating the resulting solution on a substrate and then coating on this layer a solution of the polyisocyanate or the polyisocyanate and a polyurethane. Numerous phthalocyanine dyes are disclosed. The active hydrogen containing compound may be a polyol or a polyurethane, in the latter case the active hydrogen being present on the methane group. In a typical example a solution of a dye of the formula: was mixed with a polyisocyanate derived from trimethylolpropane and tolylene diisocyanate and a commercial polyol and the resulting solution was coated onto a polyvinylchloride sheet.
Patent GB-1148526-A (GB)
Title: Improvements in or relating to hand-propelled trolleys
Inventor: MEIKLEJOHN IAN GOODHALL
IPC: B62B1/04
Filed: 1965-07-28
Abstract: 1,148,526. Hand-propelled trolleys. I. G. MEIKLEJOHN & CO. Ltd. 15 July, 1966 [28 July, 1965], No. 32218/65. Heading B7B. A hand-propelled golf-bag trolley comprises a bag-supporting spine 1, a pair of legs 2, 3 pivoted at 4 to the spine 1, a handle arm 5 frictionally pivoted at 7 to the spine 1, a pair of resilient struts connected directly to the handle arm 5, a pair of wheel-carrying links 12 having their one ends pivotally connected to the legs 2, 3, and pivotal connections between the struts on the one hand, and the legs and the other ends of the links on the other hand, such that as the legs and struts are moved into collapsed position alongside the spine 1 by downward pivoting of the handle arm 5 the wheels 16 remain parallel to each other. In an embodiment, Figs. 1-7 (only Fig. 1 shown), the struts 8, 9 are pivoted about longitudinal axes at (20), and about a transverse axis at 18, to the arm 5, and are slidable in guide sleeves 10 pivoted at 11 to the legs 2, 3. The struts and legs are pivoted at 13 and 14 to the links 12. In another embodiment, the sleeves 10 are omitted and a pair of control links pivotally and intermediately interconnect the legs and struts. In a further embodiment, the legs and struts do not cross and are pivotally and intermediately interconnected by control links. In a modification (not shown), of this embodiment, the links are replaced by a pair of resilient struts pivoted to the legs and to the ends of the struts. In yet another embodiment, the struts 8, 9 are pivoted to the arm 5 and to the legs 2, 3 and control links are pivoted to the struts 8, 9 and to the wheel carrying links.
Patent GB-426190-A (GB)
Title: Pistons
IPC: F16J1/04
Filed: 1934-11-09
Abstract: 426,190. Pistons. WELLWORTHY, Ltd., and HOWLETT, J. W., Stanford Road, Lymington, Hampshire. Nov. 9, 1934, No. 32273. [Class 122 (i)] In a piston of the kind in which the thrust faces of the skirt are connected by webs 18 to the gudgeon pin bosses, the skirt being otherwise isolated from the bosses and head, more than two webs 15 are provided on the head parallel to the axis of the bosses. Two of these webs may extend on either side of the bosses to interconnect the webs 18. Further and narrower parallel webs 16 may be provided between webs 15. Webs 18 may extend below the bosses and be connected thereto by webs 21. Slots 25 may be provided in the skirt below and/or between the bosses and may extend throughout the whole or part of the length of the skirt. Specification 366,625 is referred to.
Patent GB-937409-A (GB)
Title: Ball joint
Inventor: BREITENSTEIN VICTOR WILLIAM
IPC: F16L27/06
Filed: 1961-09-08
Abstract: 937,409. Ball joints. F. N. BARD. Sept. 8, 1961, No. 32288/61. Class 65 (2). The ball 17 is disposed in a casing 11 having an annular retainer 14 preventing movement of the ball in one direction away from the casing, and a frusto-conical spring 18 seated on a radial shoulder 13 in the casing engages the ball and urges it into sealing association with the retainer. An annular gasket 16 may be provided in the retainer. A plurality of circumferentially spaced slots may be formed extending longitudinally from the narrow end of the spring. The joint is designed to be suitable for use at high temperatures in the range 500- 1500‹ F.
Patent GB-661125-A (GB)
Title: Improvements in or relating to welding apparatus
IPC: B23K9/028
Filed: 1948-12-15
Abstract: 661,125. Uniting by fusion. FIRESTONE TYRE & RUBBER CO., Ltd. Dec. 15, 1948 [April 17, 1948], No. 32436/48. Class 83 (iv). [Also in Group XI] In welding together the abutting edges 3 of two sections of a steel barrel, a nozzle 5 supplied with an inflammable or non- inflammable gas is mounted inside the barrel with its supply pipe 4 extending through the bung-hole 2 and the nozzle is counterweighted at 7 and rotatably mounted on the supply pipe 4 so that as the barrel is rotated the nozzle remains vertical and opposite the welding head 28 outside the barrel. The member 17 coupling the nozzle to the supply pipe 4 has a tubular end which is a force fit in the inner race 16 of a bearing in a member 8 on the end of the supply pipe 4; the other end of the coupling member is part cylindrical and fits into a corresponding recess 20 in the base member 6 of the nozzle to form therewith a rotative coupling limited to a small angle of rotation allowing the nozzle to be aligned with the supply pipe 4 so that both may be passed through the bung-hole 2 into the barrel. A tubular shank 12 extends through the coupling member 17 to convey the gas clear of relatively movable parts. Specification 531,847 is referred to.
Patent GB-1513205-A (GB)
Title: Electrolytic cells
IPC: C25B9/04
Filed: 1976-08-04
Abstract: 1513205 Making current connections in electrolytic cells IMPERIAL CHEMICAL INDUSTRIES Ltd 7 July 1977 [4 Aug 1976 10 Sept 1976] 32491/76 and 37605/76 Heading C7B In a cell having a conductive corrosion-resistant base (Ta, Ti, or Nb) which supports a plurality of anodes, the underside of the base is pretinned by contact with a molten tinning metal/alloy and with an ultrasonically excited probe before bonding to one or more conductor parts of greater conductivity than the base (Cu, Al, steel). A 20 Kc/s probe may be run over the base while contacted with Sn, Zn, Cd, Sn-Pb, Sn-Zn, Sb-Bi or Sn-Zn-Pb before vacuum-soldering to a conductor sheet over its whole surface.